2 results
Search Results
Now showing 1 - 2 of 2
Article Citation - Scopus: 2An Environmentally Friendly Method of Cutting and Forming of Materials by Boron Nitride Coated Tools(Inderscience Publishers, 2014) Kaftanoǧlu,B.; Dökmetaş,N.To decrease the undesirable effects on global warming and environmental pollution, manufacturing techniques should aim to use less energy, generate less pollution to the environment and aim at higher performance in shaping and cutting materials. In this paper, a new coating technique is presented for cutting and forming tools so that they can withstand higher temperatures, preserve their surface quality and cutting edge longer and require minimum quantity of lubrication (MQL) and achieve a longer life. It is known that coolants used in manufacturing cause environmental problems and their processing raises the manufacturing cost. Therefore, MQL or dry cutting is preferred if the tool material can withstand the high temperatures. A new technology of boron nitride (BN) coating using a physical vapour deposition (PVD) system is developed. BN coatings are applied on cutting tools and forming dies. Experiments and industrial applications show an increase in tool life. MQL and manufacturing at higher temperatures can be used due to the stability of BN. Copyright © 2014 Inderscience Enterprises Ltd.Article Citation - Scopus: 2Boron Nitride Coating of Tools and Dies To Improve Performance in Manufacturing Applications(Inderscience Publishers, 2014) Kaftanoʇlu,B.; Dökmetaş,N.A physical vapour deposition (PVD) system is developed to coat boron nitride (BN) films on tools, dies, and mechanical parts to improve hardness, to decrease wear, to reduce friction and to increase high temperature resistance. Various coatings applications on steel, stainless steel, aluminium, titanium and copper have shown good adhesion. Quality is checked by coating thickness, nanohardness, scratch testing, AFM, SEM and FTIR measurements. BN coating is also applied on specimens and tools which have been previously coated by titanium nitride (TiN). FTIR results show that different allotropes (polymorphs) of BN are produced by different coating parameters. From industrial tests, extended life and improved performance is obtained for tools and dies in manufacturing applications. © 2014 Inderscience Enterprises Ltd.
